We're dividing 90666523 by 524 
We want to figure out the number of times 90666523 can be divided by 524.

Going ahead to step 1:
The number 524 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 524

On to step 2:
524 can be fit into 90 0 times, resulting in a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Grab the next digit (6) from the dividend, add it to 90, then carry on: 906 / 524

Step 3:
524 can be fit into 906 1 times, resulting in a remainder of 382.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 524 from 906 and we're left with 382.
Grab the next digit (6) from the dividend, add it to 382, then carry on: 3826 / 524

On to step 4:
524 goes into 3826 7 times with a remainder of 158.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 3668 away from 3826, we end up with 158.
Append the next digit (6) from the dividend to 158 and continue with: 1586 / 524

Let's proceed to step 5:
The number 524 fits into 1586 3 times, leaving a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 173.0
Deduct 1572 from 1586 and we're left with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 524

Moving on to step 6:
If we divide 145 by 524, we get 0 and a remainder of 145.
Put 0 as the next digit of the answer. 
Result so far: 1730.0
Deduct 0 from 145 and we're left with 145.
Bring next digit (2) of the dividend behind the 145 and repeat the process: 1452 / 524

On to step 7:
1452 divided by 524 is 2 with a remainder of 404.
The number 2 becomes the next digit in our result. 
Result so far: 17302.0
If we take 1048 away from 1452, we end up with 404.
Append the next digit (3) from the dividend to 404 and continue with: 4043 / 524

Moving on to step 8:
If we divide 4043 by 524, we get 7 and a remainder of 375.
Record the quotient 7 as the next digit in the result. 
Result so far: 173027.0
Deduct 3668 from 4043 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 9:
When dividing 3750 by 524, we get 7 with a remainder of 82.
Put 7 as the next digit of the answer. 
Result so far: 173027.7
If we subtract 3668 from 3750, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 10:
When dividing 820 by 524, we get 1 with a remainder of 296.
Put 1 as the next digit of the answer. 
Result so far: 173027.71
If we take 524 away from 820, we end up with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Moving on to step 11:
524 can be fit into 2960 5 times, resulting in a remainder of 340.
Write down 5 as next digit of the result. 
Result so far: 173027.715
If we take 2620 away from 2960, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 12:
The number 524 fits into 3400 6 times, leaving a remainder of 256.
Put 6 as the next digit of the answer. 
Result so far: 173027.7156
If we subtract 3144 from 3400, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 13:
The number 524 fits into 2560 4 times, leaving a remainder of 464.
Record the quotient 4 as the next digit in the result. 
Result so far: 173027.71564
If we take 2096 away from 2560, we end up with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 14:
The number 524 fits into 4640 8 times, leaving a remainder of 448.
Put 8 as the next digit of the answer. 
Result so far: 173027.715648
If we take 4192 away from 4640, we end up with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 15:
524 can be fit into 4480 8 times, resulting in a remainder of 288.
Record the quotient 8 as the next digit in the result. 
Result so far: 173027.7156488
If we take 4192 away from 4480, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

After the division, we end up with 173027.7156488 and a remainder of 2.88e-06.